Post by Rob on Jun 5, 2021 18:05:57 GMT -5
Hi everyone! While you all were out boating today, I was swapping out some batteries. When we bought the boat, it had two Interstate 24XHD cranking batteries, each advertising 800 CCA and 1000 MCA. They are wired in parallel. On startup today, no joy with the battery switch in ON but I could start up with switch on BOTH. Voltage meter said 10.9 on one and 12.6 on the other. Because they are six years old, I decided to replace them; it’s a big lake to have to paddle back home.
I couldn’t find an Interstate dealer open or with decent stock, so off to the auto parts place where they had two Diehard Marine batteries with the same stats, group 24, 800 CCA and 1000 MCA. Easy swap, except for the weight, as you all know.
But, everyone I spoke with today wanted to sell me one cranking battery and one deep cycle battery. I have searched this forum, the internet at large, and while I’ve developed an understanding of how these battery types differ, and how they are constructed and function, I cannot find any information that tells me if I should be using one of each or should be sticking with two cranking batteries. We bought the boat new from dealer stock and the two cranking batteries is how it arrived, so for now, I went with the notion that since we got six years out of them, I’d get the same so we can charge em up overnight and get out there tomorrow, and in the meantime, research them and when these conk out, then I’ll know if I repeat this or mix in a deep cycle battery. Any thoughts? Thanks so much.
I couldn’t find an Interstate dealer open or with decent stock, so off to the auto parts place where they had two Diehard Marine batteries with the same stats, group 24, 800 CCA and 1000 MCA. Easy swap, except for the weight, as you all know.
But, everyone I spoke with today wanted to sell me one cranking battery and one deep cycle battery. I have searched this forum, the internet at large, and while I’ve developed an understanding of how these battery types differ, and how they are constructed and function, I cannot find any information that tells me if I should be using one of each or should be sticking with two cranking batteries. We bought the boat new from dealer stock and the two cranking batteries is how it arrived, so for now, I went with the notion that since we got six years out of them, I’d get the same so we can charge em up overnight and get out there tomorrow, and in the meantime, research them and when these conk out, then I’ll know if I repeat this or mix in a deep cycle battery. Any thoughts? Thanks so much.
